CN114018422B - Full-automatic steel ladle temperature measurement sampling device and method for steelmaking - Google Patents
Full-automatic steel ladle temperature measurement sampling device and method for steelmaking Download PDFInfo
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- CN114018422B CN114018422B CN202111175710.4A CN202111175710A CN114018422B CN 114018422 B CN114018422 B CN 114018422B CN 202111175710 A CN202111175710 A CN 202111175710A CN 114018422 B CN114018422 B CN 114018422B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
- B22D2/006—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the temperature of the molten metal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/12—Thermometers specially adapted for specific purposes combined with sampling devices for measuring temperatures of samples of materials
- G01K13/125—Thermometers specially adapted for specific purposes combined with sampling devices for measuring temperatures of samples of materials for siderurgical purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention relates to a full-automatic steel ladle temperature measurement sampling device and method for steelmaking, and belongs to the technical field of steelmaking professional control equipment and methods in the metallurgical industry. The technical scheme of the invention is as follows: the temperature measuring and sampling device comprises a lifting part, a rotary supporting part, a sample gun guiding part, a temperature measuring couple head or sampler storage part and a control part, wherein the rotary supporting part is fixed on a converter temperature measuring and sampling platform, the upper end of the lifting part is connected with the rotary supporting part, the lower end position of the lifting part is matched with the sample gun guiding part, the sample gun guiding part is welded at the upper left part of the temperature measuring couple head or sampler storage part, the temperature measuring couple head or sampler storage part is connected with the lifting part, and the control part is respectively connected with the lifting part, the rotary supporting part, the sample gun guiding part and the temperature measuring couple head or sampler storage part. The beneficial effects of the invention are as follows: the automatic temperature measurement and sampling of the steel ladle are realized, the manual operation link is replaced, the labor cost is reduced, the working efficiency is improved, the process flow time is shortened, and the automatic steel making process is further promoted.
Description
Technical Field
The invention relates to a full-automatic steel ladle temperature measurement sampling device and method for steelmaking, and belongs to the technical field of steelmaking professional control equipment and methods in the metallurgical industry.
Background
The process flows of temperature measurement, sampling and oxygen determination of the steelmaking process are all links penetrating through the whole steelmaking process, wherein the temperature measurement and sampling links of steelmaking are the flow links essential for guiding steelmaking production, at present, most of steelmaking enterprises adopt a manual temperature measurement and sampling mode, the average temperature measurement required for changing molten iron into billets is roughly counted for more than 10 times, each temperature measurement takes at least more than 30 seconds, at least more than 3 workers work in the temperature measurement links in the whole flow of each ladle of molten steel, and the phenomenon of damage of a temperature measurement and sampling gun caused by improper operation often occurs, so that the time and experience of steelmaking workers are greatly involved.
Disclosure of Invention
The invention aims to provide a full-automatic steel ladle temperature measurement sampling device and method for steelmaking, which realize automatic temperature measurement sampling of steel ladle, replace manual operation links, reduce labor cost, improve working efficiency, shorten process flow time, further promote an automatic steelmaking process and effectively solve the problems in the background technology.
The technical scheme of the invention is as follows: the full-automatic steel ladle temperature measurement sampling device comprises a lifting part, a rotary supporting part, a sample gun leading-in part, a temperature measurement couple head or sampler storage part and a control part, wherein the rotary supporting part is fixed on a converter temperature measurement sampling platform;
the rotary supporting part comprises a cantilever girder, a supporting plate I, a tailstock I, a cylinder I, a mandrel, a fork head I, an ear plate I, a connecting pin shaft I, a gland, a bearing I, a supporting sleeve and a bolt, wherein the supporting sleeve is fixed on a converter temperature measuring and sampling platform through the bolt;
the lifting part comprises a temperature measuring sampling gun, a balance weight I, a guide pipe, a supporting seat, a fixed pulley, a spring expansion ring, a pin shaft, a steel wire rope, an electric winch, a clockwork cable drum and a transmission cable, wherein the upper end of the guide pipe is welded below one end of a cantilever girder of the rotary supporting part, which is far away from the mandrel; the temperature measuring sampling gun is respectively connected with the steel wire rope and the transmission cable; the fixed pulleys are arranged at the upper part of one end of a cantilever girder of the rotary supporting part, which is far away from the mandrel, through a supporting seat, a spring expansion ring and a pin shaft, the electric winch and the clockwork spring cable winding drum are arranged at the other end of the cantilever girder, the steel wire rope passes through the guide pipe, the fixed pulleys and the electric winch to be connected with the control part, and the transmission cable passes through the guide pipe, the fixed pulleys and the clockwork spring cable winding drum to be connected with the control part; the first counterweight is arranged in the guide pipe and sleeved at the upper end part of the temperature measuring and sampling gun;
the temperature measuring couple head or the sampler storage part comprises a temperature measuring couple head or a sampler, a movable slide plate, a second lug plate, a second connecting pin shaft, a second fork head, a cage type sample storage body, a second cylinder and an end face flange, wherein the temperature measuring couple head or the sampler is densely arranged in the cage type sample storage body, the cylinder is fixed on the right side face of the cage type sample storage body through the end face flange, the movable slide plate is vertically arranged on the right side of the inside of the cage type sample storage body, the second lug plate is welded at the middle part of the movable slide plate, and the second fork head is connected with the movable slide plate through the second connecting pin shaft;
the sample gun guiding part comprises a rotary stop block, a fixed stop block, a support shaft, an outer expansion ring, a bearing box, an inner conical guide sleeve, a third lug plate, a third connecting pin shaft, a third fork head, a third cylinder, a third connecting pin shaft, a second tail seat, a second bearing and a second support plate, wherein the second support plate is vertically welded at the upper left part of the cage type sample storage body, the two support shafts are symmetrically and horizontally welded at the tail end of the upper part of the second support plate; the two bearing boxes are symmetrically welded on two sides of the inner conical guide sleeve, the second bearing is assembled in the bearing box, and the second bearing is assembled with the inner ring of one end of the support shaft far away from welding and fixed through the outer expansion ring and hung in front of the second support plate; the two fixed stop blocks are symmetrically welded on both sides of an outlet of a Fang Cewen coupler or a sampler on the cage type sample storage device body, the two rotary stop blocks are symmetrically welded on both sides of the lower end face of the outlet of the lower part of the inner conical guide sleeve; the third lug plate is welded at two sides of the outlet at the lower part of the inner conical guide sleeve, the second tailstock is welded at two sides of the cage type sample storage body, the head part of the air cylinder is connected with the inner conical guide sleeve through the third fork head, the third connecting pin shaft and the third lug plate, and the tail part of the air cylinder is connected with the Fang Cewen even head or the outlet of the sampler on the cage type sample storage body through the third connecting pin shaft and the second tailstock;
the control part comprises a control gas pipeline, a Y-type three-position four-way electromagnetic valve, an O-type three-position four-way electromagnetic valve I, an O-type three-position four-way electromagnetic valve II, an MCC cabinet, a PLC, an encoder, a magnetic ring limit switch I, a magnetic ring limit switch II, a magnetic ring limit switch III, a magnetic ring limit switch IV, a laser range finder, a stand and a protection plate, wherein the Y-type three-position four-way electromagnetic valve, the O-type three-position four-way electromagnetic valve I and the O-type three-position four-way electromagnetic valve II form a pneumatic control loop with a cylinder II, a cylinder III and a cylinder I respectively through the control gas pipeline; the laser range finder is welded at the upper end part of the left side of the cantilever girder through the machine base, and the lower part of the laser range finder is welded with the protection plate; the MCC cabinet and the PLC are combined with the laser range finder, the encoder, the first magnetic ring limit switch, the second magnetic ring limit switch, the third magnetic ring limit switch and the fourth magnetic ring limit switch through various lines to form a control execution unit.
The inner conical guide sleeve comprises two half bodies, two sides of the lower parts of the two half bodies of the inner conical guide sleeve are symmetrically welded with adjusting screws, each adjusting screw is provided with a second counterweight and positioned through an adjusting nut, and the two half bodies of the inner conical guide sleeve are combined into a whole under the action of gravity of the two second counterweights to form a conical guide inlet.
The vertical center line of the guide pipe is concentric with the vertical center line of the temperature measuring sampling gun; the upper end of the counterweight is conical, so that the counterweight can conveniently enter the guide pipe, and the vertical center line of the counterweight is concentric with the vertical center line of the temperature measuring sampling gun.
And a protective cover is arranged outside the fixed pulley.
The storage part of the thermocouple head or the sampler is of a cage type single-row stepping storage structure, and the second cylinder is arranged at one end of the starting point of the advancing direction of the thermocouple head or the sampler of the cage type sample storage body.
The A\B\T of the Y-type three-position four-way electromagnetic valve is communicated, and a middle position functional structure is arranged, so that when the Y-type three-position four-way electromagnetic valve is in a middle position power-losing state, a piston of the second cylinder is in a free state, and a temperature measuring couple head or a sampler is in a pure non-pressure state, and the temperature measuring couple head or the sampler is easily loaded in an upper position of a temperature measuring sampling gun.
The first cylinder is arranged at the left upper part of the first supporting plate, and the rotary supporting part is of a pneumatic structure; the O-shaped three-position four-way electromagnetic valve II, the magnetic ring limit switch III and the magnetic ring limit switch IV are controlled by pLc and can be stopped at will within the range of 90 degrees.
A full-automatic steel ladle temperature measurement sampling method for steelmaking comprises the following steps:
(1) When the ladle enters the temperature measuring area, the control part controls the cylinder of the rotary supporting part to drive the cantilever girder to rotate to reach the temperature measuring set position;
(2) The control part measures the liquid level of molten steel in the ladle, calculates and gives out a gun descending instruction and gun descending depth, controls the electric winch of the lifting part to rotate anticlockwise, and the temperature measuring sampling gun provided with the temperature measuring coupling head or the sampler descends at a constant speed along with the rotation of the electric winch under the action of dead weight and the counterweight I to reach the set depth position;
(3) The control part gives a shelling instruction, the cantilever girder of the rotary supporting part is controlled to rotate anticlockwise, so that the central line of the guide pipe is concentric with the central line of the inner conical guide sleeve, the control part gives a gun descending instruction, the thermocouple head or the sampler vertically descends along the guide pipe and enters the upper opening of the inner conical guide sleeve of the sample gun guiding part, the lower opening of the inner conical guide sleeve is expanded into two halves, after the thermocouple head or the sampler smoothly passes through the inner conical guide sleeve, the two halves of the inner conical guide sleeve are quickly reset and clamped, the control part gives an ascending return instruction, the lower outlet of the inner conical guide sleeve is closed, the thermocouple head or the sampler is left below the inner conical guide sleeve, and the temperature measuring and sampling gun returns to the upper limit;
(4) The control part sends out an automatic loading program instruction, the temperature measuring sampling gun is controlled to vertically descend along the guide pipe, the gun head automatically corrects the inner hole entering the temperature measuring couple head or the sampler 1 after passing through the lower cone opening of the inner cone guide sleeve, and the temperature measuring sampling gun is always inserted into the bottom of the temperature measuring couple head or the sampler under the action of the gravity of the counterweight;
(5) The lower guide mouth of the inner conical guide sleeve opens to give off the ascending channel of the thermocouple head or the sampler, the control part sends out an instruction of returning the lifting gun to the upper limit, after the thermocouple head or the sampler ascends in place, the control part controls the rotary stop block to collide with the fixed stop block and then stop, at the moment, the two halves of the inner conical guide sleeve are just tightly combined into a whole, the next temperature measurement or sampling waiting state is entered, and one working closed loop is completed.
The beneficial effects of the invention are as follows: the automatic temperature measurement and sampling of the steel ladle are realized, the manual operation link is replaced, the labor cost is reduced, the working efficiency is improved, the process flow time is shortened, and the automatic steel making process is further promoted.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a partial front view of the temperature thermocouple head or sampler of the present invention in an installed ("loaded") condition;
FIG. 3 is a top view showing the state of waiting for temperature measurement and sampling at the "loading" position according to the present invention
FIG. 4 is an enlarged partial top view of the "loading" position of the present invention awaiting temperature measurement and sampling;
FIG. 5 is an enlarged front view of a portion of the present invention showing the temperature thermocouple head or sampler installed ("loaded") in a completed state;
FIG. 6 is a top view of the temperature measurement or sampling state of the present invention;
FIG. 7 is a top view of the thermocouple head or sampler of the present invention in a "unshelling" condition;
FIG. 8 is a front view of the temperature measurement or sampling "shelling" start condition of the present invention;
FIG. 9 is a front view of the state during the thermometry or sampling "unshelling" state of the invention;
FIG. 10 is a front view of the temperature measuring sampling gun of the present invention shown separated from the thermocouple head or the sampler housing;
FIG. 11 is a cross-sectional view of an inner conical sleeve of the present invention;
in the figure: the temperature measuring couple head or sampler 1, the temperature measuring sampling gun 2, the rotary type stop dog 3, the fixed type stop dog 4, the supporting shaft 5, the outer expansion ring 6, the bearing box 7, the counterweight I8, the guide pipe 9, the inner cone-shaped guide sleeve 10, the lug plate III 11, the connecting pin shaft III 12, the fork head III 13, the cylinder III 14, the connecting pin shaft III 15, the tail seat II 16, the movable sliding plate 17, the lug plate II 18, the connecting pin shaft II 19, the fork head II 20, the cage type sample storage body 21, the cylinder II 22, the supporting seat 23, the protective cover 24, the fixed pulley 25, the spring expansion ring 26, the pin shaft 27, the cantilever beam 28, the steel wire rope 29, the supporting plate I30, the tail seat I31, the cylinder I32, the mandrel 33 the electric winch 34, a fork head I35, an ear plate I36, a connecting pin I37, a gland 38, a bearing I39, a supporting sleeve 40, a spring cable drum 41, a transmission cable 42, a control gas pipeline 43, a Y-type three-position four-way electromagnetic valve 44, an O-type three-position four-way electromagnetic valve I45, an O-type three-position four-way electromagnetic valve II 46, an MCC cabinet 47, a PLC48, an encoder 49, an end face flange 50, a bearing II 51, a bolt 52, a supporting plate II 53, a magnetic ring limit switch I54, a magnetic ring limit switch II 55, a magnetic ring limit switch III 56, a magnetic ring limit switch IV 57, an adjusting nut 58, an adjusting screw 59, a counterweight II 60, a laser range finder 61, a stand 62 and a protection plate 63.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments, and it is apparent that the described embodiments are a small part of the embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
A full-automatic ladle temperature measurement sampling device of steelmaking, its characterized in that: the temperature measuring device comprises a lifting part, a rotary supporting part, a sample gun introducing part, a temperature measuring couple head or a sampler storage part and a control part, wherein the rotary supporting part is fixed on a converter temperature measuring and sampling platform, the upper end of the lifting part is connected with the rotary supporting part, the lower end position of the lifting part is matched with the sample gun introducing part, the sample gun introducing part is welded at the upper left part of the temperature measuring couple head or the sampler storage part, the temperature measuring couple head or the sampler storage part is connected with the lifting part, and the control part is respectively connected with the lifting part, the rotary supporting part, the sample gun introducing part and the temperature measuring couple head or the sampler storage part;
the rotary support part comprises a cantilever girder 28, a first support plate 30, a first tailstock 31, a first cylinder 32, a mandrel 33, a first fork head 35, a first lug plate 36, a first connecting pin shaft 37, a gland 38, a first bearing 39, a support sleeve 40 and a bolt 52, wherein the support sleeve 40 is fixed on a converter temperature measurement sampling platform through the bolt 52, the mandrel 33 is assembled inside the support sleeve 40 through the first bearing 39, the upper end part of the mandrel is axially positioned through the gland 38, the cantilever girder 28 is welded at the upper end part of the mandrel 33, the first cylinder 32 is connected with the cantilever girder 28 through the first support plate 30, the first tailstock 31, the first fork head 35, the first lug plate 36 and the first connecting pin shaft 37, the first lug plate 36 is welded with the cantilever girder 28, the first cylinder 32 is fixedly connected with the first tailstock 31, and the first tailstock 31 is welded on the first support plate 30;
the lifting part comprises a temperature measuring sampling gun 2, a counterweight I8, a guide pipe 9, a supporting seat 23, a fixed pulley 25, a spring expansion ring 26, a pin shaft 27, a steel wire rope 29, an electric winch 34, a clockwork cable drum 41 and a transmission cable 42, and the upper end of the guide pipe 9 is welded below one end, far away from the mandrel 33, of a cantilever girder 28 of the rotary supporting part; the temperature measuring sampling gun 2 is respectively connected with a steel wire rope 29 and a transmission cable 42; the fixed pulleys 25 are arranged at two, a cantilever girder 28 of the rotary supporting part is arranged above one end of the cantilever girder 28 far away from the mandrel 33 through a supporting seat 23, a spring expansion ring 26 and a pin shaft 27, an electric winch 34 and a clockwork cable drum 41 are arranged at the other end of the cantilever girder 28, a steel wire rope 29 passes through a guide pipe 9, the fixed pulleys 25 and the electric winch 34 to be connected with a control part, and a transmission cable 42 passes through the guide pipe 9, the fixed pulleys 25 and the clockwork cable drum 41 to be connected with the control part; the first counterweight 8 is arranged in the guide pipe 9 and sleeved at the upper end part of the temperature measuring and sampling gun 2;
the temperature measurement couple head or sampler storage part comprises a temperature measurement couple head or sampler 1, a movable slide plate 17, a second lug plate 18, a second connecting pin shaft 19, a second fork head 20, a cage type sample storage body 21, a second cylinder 22 and an end face flange 50, wherein the temperature measurement couple head or sampler 1 is densely arranged in the cage type sample storage body 21, the second cylinder 22 is fixed on the right side face of the cage type sample storage body 21 through the end face flange 50, the movable slide plate 17 is vertically arranged on the right side inside the cage type sample storage body 21, the second lug plate 18 is welded in the middle of the movable slide plate 17, and the second fork head 20 is connected with the movable slide plate 17 through the second connecting pin shaft 19;
the sample gun leading-in part comprises a rotary stop block 3, a fixed stop block 4, a support shaft 5, an outer expansion ring 6, a bearing box 7, an inner conical guide sleeve 10, a third ear plate 11, a third connecting pin shaft 12, a third fork head 13, a third cylinder 14, a third connecting pin shaft 15, a second tailstock 16, a second bearing 51 and a second support plate 53, wherein the second support plate 53 is vertically welded at the left upper part of the cage type sample storage body 21, the number of the support shafts 5 is two, and the symmetrical horizontal welding is arranged at the tail end of the upper part of the second support plate 53; the two bearing boxes 7 are symmetrically welded on two sides of the inner conical guide sleeve 10, the second bearing 51 is assembled in the bearing box 7, the second bearing 51 and the inner ring of one end of the support shaft 5 far away from welding are assembled and fixed through the outer expansion ring 6, and the second bearing 51 is suspended in front of the second support plate 53; two fixed stop blocks 4 are symmetrically welded on both sides of an outlet of a Fang Cewen coupler head or a sampler 1 on the cage type sample storage body 21, and two rotary stop blocks 3 are symmetrically welded on both sides of the lower end face of the lower part of the inner conical guide sleeve 10; the third ear plate 11 is welded on two sides of the lower outlet of the inner conical guide sleeve 10, the second tail seat 16 is welded on two sides of the cage type sample storage body 21, the head of the third cylinder 14 is connected with the inner conical guide sleeve 10 through the third fork head 13, the third connecting pin shaft 12 and the third ear plate 11, and the tail part is connected with the Fang Cewen coupling head on the cage type sample storage body 21 or the outlet of the sampler 1 through the third connecting pin shaft 15 and the second tail seat 16;
the control part comprises a control gas pipeline 43, a Y-shaped three-position four-way electromagnetic valve 44, an O-shaped three-position four-way electromagnetic valve I45, an O-shaped three-position four-way electromagnetic valve II 46, an MCC cabinet 47, a PLC48, an encoder 49, a magnetic ring limit switch I54, a magnetic ring limit switch II 55, a magnetic ring limit switch III 56, a magnetic ring limit switch IV 57, a laser range finder 61, a base 62 and a protection plate 63, wherein the Y-shaped three-position four-way electromagnetic valve 44, the O-shaped three-position four-way electromagnetic valve I45 and the O-shaped three-position four-way electromagnetic valve II 46 respectively form a pneumatic control loop with a cylinder II 22, a cylinder III 14 and a cylinder I32 through the control gas pipeline 43; the laser range finder 61 is welded to the upper end part of the left side of the cantilever girder 28 through a stand 62, and a protection plate 63 is welded to the lower part of the laser range finder 61; the MCC cabinet 47 and the PLC48 are combined into a control execution unit through various lines with a laser range finder 61, an encoder 49, a first magnetic ring limit switch 54, a second magnetic ring limit switch 55, a third magnetic ring limit switch 56 and a fourth magnetic ring limit switch 57. The electrical control and programming parts are not claimed and are not shown or described in detail in the circuit connection diagrams.
The inner cone-shaped guide sleeve 10 comprises two half bodies, two sides of the lower parts of the two half bodies of the inner cone-shaped guide sleeve 10 are symmetrically welded with adjusting screws 59, two counterweights 60 are respectively arranged on each adjusting screw 59 and are positioned through adjusting nuts 58, and the two half bodies of the inner cone-shaped guide sleeve 10 are combined into a whole under the action of the gravity of the two counterweights 60 to form a cone-shaped guide inlet.
The vertical center line of the guide pipe 9 is concentric with the vertical center line of the temperature measuring sampling gun 2; the upper end of the first counterweight 8 is conical, so that the first counterweight can conveniently enter the guide pipe 9, and the vertical center line of the first counterweight 8 is concentric with the vertical center line of the temperature measuring sampling gun 2.
The outside of the fixed pulley 25 is provided with a protective cover 24.
The storage part of the thermocouple head or the sampler is in a cage type single-row stepping storage structure, the second cylinder 22 is arranged at one end of the starting point of the advancing direction of the thermocouple head or the sampler 1 of the cage type sample storage body 21, namely, after the thermocouple head or the sampler 1 is taken out of the temperature measuring and sampling gun 2 each time, the second cylinder 22 pushes the movable sliding plate 17 to push all the thermocouple heads or the samplers 1 to be taken out to automatically go up for one step.
The Y-type three-position four-way electromagnetic valve 44 is communicated with the a\b\t, and is provided with a middle position functional structure, so that when the Y-type three-position four-way electromagnetic valve 44 is in a neutral position power-losing state, the piston of the second cylinder 22 is in a free state, and the temperature measuring couple head or the sampler 1 is in a pure non-pressure state, so that the temperature measuring couple head or the sampler 1 is easily and 'loaded' in the upper position of the temperature measuring sampling gun 2.
The first cylinder 32 is arranged at the upper left of the first supporting plate 30, and the rotary supporting part is of a pneumatic structure; the second O-shaped three-position four-way electromagnetic valve 46, the second magnetic ring limit switch 55, the third magnetic ring limit switch 56 and the fourth magnetic ring limit switch 57 are controlled by pLc and can be stopped at will within the range of 90 degrees.
A full-automatic steel ladle temperature measurement sampling method for steelmaking comprises the following steps:
(1) When the ladle enters the temperature measuring area, the control part controls the cylinder of the rotary supporting part to drive the cantilever girder to rotate to reach the temperature measuring set position;
(2) The control part measures the liquid level of molten steel in the ladle, calculates and gives out a gun descending instruction and gun descending depth, controls the electric winch of the lifting part to rotate anticlockwise, and the temperature measuring sampling gun provided with the temperature measuring coupling head or the sampler descends at a constant speed along with the rotation of the electric winch under the action of dead weight and the counterweight I to reach the set depth position;
(3) The control part gives a shelling instruction, the cantilever girder of the rotary supporting part is controlled to rotate anticlockwise, so that the central line of the guide pipe is concentric with the central line of the inner conical guide sleeve, the control part gives a gun descending instruction, the thermocouple head or the sampler vertically descends along the guide pipe and enters the upper opening of the inner conical guide sleeve of the sample gun guiding part, the lower opening of the inner conical guide sleeve is expanded into two halves, after the thermocouple head or the sampler smoothly passes through the inner conical guide sleeve, the two halves of the inner conical guide sleeve are quickly reset and clamped, the control part gives an ascending return instruction, the lower outlet of the inner conical guide sleeve is closed, the thermocouple head or the sampler is left below the inner conical guide sleeve, and the temperature measuring and sampling gun returns to the upper limit;
(4) The control part sends out an automatic loading program instruction, the temperature measuring sampling gun is controlled to vertically descend along the guide pipe, the gun head automatically corrects the inner hole entering the temperature measuring couple head or the sampler 1 after passing through the lower cone opening of the inner cone guide sleeve, and the temperature measuring sampling gun is always inserted into the bottom of the temperature measuring couple head or the sampler under the action of the gravity of the counterweight;
(5) The lower guide mouth of the inner conical guide sleeve opens to give off the ascending channel of the thermocouple head or the sampler, the control part sends out an instruction of returning the lifting gun to the upper limit, after the thermocouple head or the sampler ascends in place, the control part controls the rotary stop block to collide with the fixed stop block and then stop, at the moment, the two halves of the inner conical guide sleeve are just tightly combined into a whole, the next temperature measurement or sampling waiting state is entered, and one working closed loop is completed.
In practical application, when the ladle enters the temperature measuring area, the master worker I starts an automatic temperature measuring or sampling program, the pLC48 sends out an instruction, the O-shaped three-position four-way electromagnetic valve II 46 is electrified and commutated, compressed air enters the rodless cavity of the air cylinder I32 through the control air pipeline 43 to push the cylinder lifting piston to move forward, the air cylinder I32 stretches out by the lever, the fork I35 pushes the lug plate I36 to drive the cantilever girder 28 to rotate to reach a temperature measuring set position (as shown in figure 5, the temperature measuring set position can be adjusted by moving the magnetic ring limit switch II 55), the magnetic ring limit switch II 55 feeds back a position signal, the pLC48 sends out an O-shaped three-position four-way electromagnetic change valve II 46 power-off instruction, the O-shaped three-position four-way electromagnetic valve II 46 power-off and commutated to be neutral position, the air cylinder I32 stops moving, meanwhile, the laser range finder 61 measures the liquid level of molten steel in the ladle and sends the liquid level to the pLC48, the PLC48 calculates and gives a gun descending instruction and gun descending depth according to the liquid level of molten steel in the ladle given by the laser range finder 61, the electric winch 34 automatically rotates anticlockwise, the temperature measuring sampling gun 2 provided with a temperature measuring couple or a sampler 1 descends at a constant speed along with the rotation of the electric winch 34 under the action of dead weight and the counterweight I8, the encoder 49 feeds back the gun descending depth to the pLC48 through the circumference of the roller of the electric winch 34, the encoder 49 automatically stops after reaching a set depth position, after 3 seconds of delay, the PLC48 gives a gun lifting value and a return instruction, the encoder 49 transmits a waiting position to the pLC48 after reaching an upper limit, the PLC48 immediately gives a stop instruction, after 3 seconds of delay, the PLC48 gives a "shelling" instruction, the O-shaped three-position four-way electromagnetic valve II 46 returns to be electrically commutated, the cylinder I32 does not have a rod cavity to charge, the cylinder piston is pushed to move backwards, the lever is retracted, the fork head I35 drives the ear plate I36 and the cantilever girder 28 to rotate anticlockwise, the magnetic ring limit switch III 56 feeds back the position to the PLC48, the O-shaped three-position four-way electromagnetic valve II 46 is in a power-off reversing state to the middle position, at the moment, the vertical center line of the guide pipe 9 is just concentric with the center line of the inner cone-shaped guide sleeve 10 (realized by adjusting the position of the magnetic ring limit switch III 56), the 35 79 sends an automatic shelling program instruction after 3 seconds of delay, the pLC48 gives an instruction of 3 meters (self-setting value) of a down gun, the thermocouple head or the sampler 1 vertically descends along the guide pipe 9, enters an ascending port of the inner cone-shaped guide sleeve 10, the inner cone-shaped guide sleeve 10 respectively overcomes the gravity of the two counter weights II 60 under the pressure of the counter weight I8, rotates by taking two LM points as the center of a circle, the lower port of the inner cone-shaped guide sleeve 10 is expanded into two half bodies, after the two half bodies of the inner cone-shaped guide sleeve 10 smoothly pass through the inner cone-shaped guide sleeve 10, the two half bodies of the inner cone-shaped guide sleeve 10 are rapidly reset and clamped under the action of the two counter weights II 60, after the encoder 49 feeds back and descends for 3 meters to the time delay 3 seconds, the temperature detector 49 automatically gives an instruction of the down gun 3 meters, the temperature detector 1 is automatically descends to the upper end of the guide sleeve 9, and the temperature detector 1 is vertically returns to the upper end of the cone-shaped guide sleeve 10, and the temperature detector 1 is turned off to the upper end of the position of the detector, and is turned down end of the detector 3 meter, and is turned down to the end of the detector 3. The pLC48 sends out the command of getting electricity again from the return coil of the second 46 of the O-shaped three-position four-way electromagnetic valve, after the feedback position of the fourth 57 of the magnetic ring limit switch reaches the PLC48, the second 46 of the O-shaped three-position four-way electromagnetic valve is in a power failure state and is in a neutral state, pLc sends out an automatic charging program command after 3 seconds of delay, the pLC48 gives out a command of lowering the gun by 3 meters, the temperature measuring sampling gun 2 vertically descends along the guide pipe 9, the gun head automatically corrects the inner hole entering the temperature measuring couple head or the sampler 1 after passing through the lower cone opening of the inner cone guide sleeve 10, the temperature measuring sampling gun 2 is always inserted into the bottom of the temperature measuring couple head or the sampler 2 under the action of the gravity of the balance weight I8, when the encoder 49 feeds back and descends by 3 meters to the position delay time of 3 seconds, the pLC48 automatically sends out the command of getting electricity from the first 45 of the O-shaped three-position four-way electromagnetic valve, compressed air respectively enters the three 14 rod cavities of the two cylinders to push the pistons to move towards two ends, the two halves of the opposite clamping type inner conical guide sleeve 10 are respectively driven by the retraction fork heads of the three 14 cylinder rods to rotate by taking GH two points as centers of circles, the lower guide mouth of the inner conical guide sleeve 10 opens to give up a rising channel of a temperature measuring couple head or a sampler 1, after the first 54 of the two magnetic ring limit switches is fed back to be in place, the PLC48 automatically sends out an instruction of returning a lifting gun to an upper limit (waiting position), after the same pLc receives the digital feedback 3 meters of an encoder to be in place, the electric winch 34 is in a power-off braking mode, meanwhile, the pLC48 sends out an O-shaped three-position four-way electromagnetic valve one 45 power-off instruction, the two cylinders three 14 respectively push the two halves of the inner conical guide sleeve 10 to rotate in opposite directions by taking GH two points as centers of circles, the rotary stop block 3 and the fixed stop block 4 are stopped after touching, at the moment, the two halves of the inner conical guide sleeve 10 are just tightly combined into a whole, and the next temperature measuring or sampling waiting state is achieved, and one working closed loop is completed.
Claims (8)
1. A full-automatic ladle temperature measurement sampling device of steelmaking, its characterized in that: the temperature measuring device comprises a lifting part, a rotary supporting part, a sample gun introducing part, a temperature measuring couple head or a sampler storage part and a control part, wherein the rotary supporting part is fixed on a converter temperature measuring and sampling platform, the upper end of the lifting part is connected with the rotary supporting part, the lower end position of the lifting part is matched with the sample gun introducing part, the sample gun introducing part is welded at the upper left part of the temperature measuring couple head or the sampler storage part, the temperature measuring couple head or the sampler storage part is connected with the lifting part, and the control part is respectively connected with the lifting part, the rotary supporting part, the sample gun introducing part and the temperature measuring couple head or the sampler storage part;
the rotary support part comprises a cantilever girder (28), a support plate I (30), a tailstock I (31), a cylinder I (32), a mandrel (33), a fork head I (35), an ear plate I (36), a connecting pin I (37), a gland (38), a bearing I (39), a support sleeve (40) and a bolt (52), wherein the support sleeve (40) is fixed on a converter temperature measurement sampling platform through the bolt (52), the mandrel (33) is assembled inside the support sleeve (40) through the bearing I (39), the upper end part of the mandrel is axially positioned through the gland (38), the cantilever girder (28) is welded at the upper end part of the mandrel (33), the cylinder I (32) is connected with the cantilever girder (28) through the support plate I (30), the tailstock I (31), the fork head I (35), the ear plate I (36) and the connecting pin I (37), the ear plate I (36) is welded with the cantilever girder (28), the cylinder I (32) is fixedly connected with the tailstock I (31), and the tailstock I (31) is welded on the support plate I (30);
the lifting part comprises a temperature measuring sampling gun (2), a balance weight I (8), a guide pipe (9), a supporting seat (23), a fixed pulley (25), a spring expansion ring (26), a pin shaft (27), a steel wire rope (29), an electric winch (34), a clockwork spring cable drum (41) and a transmission cable (42), wherein the upper end of the guide pipe (9) is welded below one end, far away from the mandrel (33), of a cantilever girder (28) of the rotary supporting part; the temperature measuring sampling gun (2) is respectively connected with the steel wire rope (29) and the transmission cable (42); the two fixed pulleys (25) are arranged above one end, far away from the core shaft (33), of a cantilever girder (28) of the rotary supporting part through a supporting seat (23), a spring expansion ring (26) and a pin shaft (27), an electric winch (34) and a clockwork cable winding drum (41) are arranged at the other end of the cantilever girder (28), a steel wire rope (29) penetrates through a guide pipe (9), the fixed pulleys (25) and the electric winch (34) to be connected with a control part, and a transmission cable (42) penetrates through the guide pipe (9), the fixed pulleys (25) and the clockwork cable winding drum (41) to be connected with the control part; the first counterweight (8) is arranged in the guide pipe (9) and sleeved at the upper end part of the temperature measuring and sampling gun (2);
the temperature measurement couple head or the sampler storage part comprises a temperature measurement couple head or a sampler (1), a movable slide plate (17), a second lug plate (18), a second connecting pin shaft (19), a second fork head (20), a cage type sample storage body (21), a second cylinder (22) and an end face flange (50), wherein the temperature measurement couple head or the sampler (1) is closely arranged in the cage type sample storage body (21), the second cylinder (22) is fixed on the right side surface of the cage type sample storage body (21) through the end face flange (50), the movable slide plate (17) is vertically arranged on the right side inside the cage type sample storage body (21), the second lug plate (18) is welded in the middle part of the movable slide plate (17), and the second fork head (20) is connected with the movable slide plate (17) through the second connecting pin shaft (19);
the sample gun leading-in part comprises a rotary stop block (3), a fixed stop block (4), a supporting shaft (5), an outer expansion ring (6), a bearing box (7), an inner conical guide sleeve (10), a third ear plate (11), a third connecting pin shaft (12), a third fork head (13), a third cylinder (14), a third connecting pin shaft (15), a second tail seat (16), a second bearing (51) and a second supporting plate (53), wherein the second supporting plate (53) is vertically welded on the upper left side of the cage type sample storage body (21), two supporting shafts (5) are symmetrically and horizontally welded on the tail end of the upper part of the second supporting plate (53); the two bearing boxes (7) are symmetrically welded on two sides of the inner conical guide sleeve (10), the second bearing (51) is assembled in the bearing boxes (7), the second bearing (51) and the inner ring of one end, far away from welding, of the supporting shaft (5) are assembled and fixed through the outer expansion ring (6), and the second bearing is hung in front of the second supporting plate (53); two fixed stop blocks (4) are symmetrically welded on both sides of a Fang Cewen coupler head on the cage type sample storage body (21) or the outlet of the sampler (1), and two rotary stop blocks (3) are symmetrically welded on both sides of the lower end face of the lower part of the inner conical guide sleeve (10); the third ear plate (11) is welded at two sides of the lower outlet of the inner conical guide sleeve (10), the second tail seat (16) is welded at two sides of the cage type sample storage body (21), the head of the third air cylinder (14) is connected with the inner conical guide sleeve (10) through the third fork head (13), the third connecting pin shaft (12) and the third ear plate (11), and the tail part is connected with the Fang Cewen coupling head on the cage type sample storage body (21) or the outlet of the sampler (1) through the third connecting pin shaft (15) and the second tail seat (16);
the control part comprises a control gas pipeline (43), a Y-shaped three-position four-way electromagnetic valve (44), an O-shaped three-position four-way electromagnetic valve I (45), an O-shaped three-position four-way electromagnetic valve II (46), an MCC cabinet (47), a PLC (48), an encoder (49), a magnetic ring limit switch I (54), a magnetic ring limit switch II (55), a magnetic ring limit switch III (56), a magnetic ring limit switch IV (57), a laser range finder (61), a base (62) and a protection plate (63), wherein the Y-shaped three-position four-way electromagnetic valve (44), the O-shaped three-position four-way electromagnetic valve I (45) and the O-shaped three-position four-way electromagnetic valve II (46) respectively form a pneumatic control loop with a cylinder II (22), a cylinder III (14) and a cylinder I (32) through the control gas pipeline (43); the laser range finder (61) is welded at the upper end part of the left side of the cantilever girder (28) through the stand (62), and a protection plate (63) is welded at the lower part of the laser range finder (61); the MCC cabinet (47) and the PLC (48) are combined with the laser range finder (61), the encoder (49), the first magnetic ring limit switch (54), the second magnetic ring limit switch (55), the third magnetic ring limit switch (56) and the fourth magnetic ring limit switch (57) through various lines to form a control execution unit.
2. The full-automatic steel ladle temperature measurement sampling device according to claim 1, wherein: the inner conical guide sleeve (10) comprises two half bodies, two sides of the lower parts of the two half bodies of the inner conical guide sleeve (10) are symmetrically welded with adjusting screws (59), each adjusting screw (59) is provided with a counterweight II (60) respectively and is positioned through an adjusting nut (58), and the two half bodies of the inner conical guide sleeve (10) are combined into a whole under the action of the gravity of the two counterweight II (60) to form a conical guide inlet.
3. The full-automatic steel ladle temperature measurement sampling device according to claim 1, wherein: the vertical center line of the guide pipe (9) is concentric with the vertical center line of the temperature measuring sampling gun (2); the upper end of the first counterweight (8) is conical, so that the first counterweight can conveniently enter the guide pipe (9), and the vertical center line of the first counterweight (8) is concentric with the vertical center line of the temperature measuring sampling gun (2).
4. The full-automatic steel ladle temperature measurement sampling device according to claim 1, wherein: a protective cover (24) is arranged outside the fixed pulley (25).
5. The full-automatic steel ladle temperature measurement sampling device according to claim 1, wherein: the storage part of the thermocouple head or the sampler is of a cage type single-row stepping storage structure, and the second cylinder (22) is arranged at one end of the starting point of the advancing direction of the thermocouple head or the sampler (1) of the cage type sample storage body (21).
6. The full-automatic steel ladle temperature measurement sampling device according to claim 1, wherein: the A\B\T of the Y-shaped three-position four-way electromagnetic valve (44) is communicated, and a median function structure is arranged, so that when the Y-shaped three-position four-way electromagnetic valve (44) is in a neutral position power-losing state, a piston of the second cylinder (22) is in a free state, a temperature measuring couple head or a sampler (1) is in a pure non-pressure state, and the temperature measuring couple head or the sampler (1) is easily and 'loaded' in an upper position by the temperature measuring sampling gun (2).
7. The full-automatic steel ladle temperature measurement sampling device according to claim 1, wherein: the first cylinder (32) is arranged at the upper left part of the first supporting plate (30), and the rotary supporting part is of a pneumatic structure; the O-shaped three-position four-way electromagnetic valve II (46), the magnetic ring limit switch II (55), the magnetic ring limit switch III (56) and the magnetic ring limit switch IV (57) are controlled by pLc (48) and can be stopped at will within the range of 90 degrees.
8. A method for performing temperature measurement and sampling by using the full-automatic steel ladle temperature measurement and sampling device according to any one of claims 1 to 7, which is characterized by comprising the following steps:
(1) When the ladle enters the temperature measuring area, the control part controls the cylinder of the rotary supporting part to drive the cantilever girder to rotate to reach the temperature measuring set position;
(2) The control part measures the liquid level of molten steel in the ladle, calculates and gives out a gun descending instruction and gun descending depth, controls the electric winch of the lifting part to rotate anticlockwise, and the temperature measuring sampling gun provided with the temperature measuring coupling head or the sampler descends at a constant speed along with the rotation of the electric winch under the action of dead weight and the counterweight I to reach the set depth position;
(3) The control part gives a shelling instruction, the cantilever girder of the rotary supporting part is controlled to rotate anticlockwise, so that the central line of the guide pipe is concentric with the central line of the inner conical guide sleeve, the control part gives a gun descending instruction, the thermocouple head or the sampler vertically descends along the guide pipe and enters the upper opening of the inner conical guide sleeve of the sample gun guiding part, the lower opening of the inner conical guide sleeve is expanded into two halves, after the thermocouple head or the sampler smoothly passes through the inner conical guide sleeve, the two halves of the inner conical guide sleeve are quickly reset and clamped, the control part gives an ascending return instruction, the lower outlet of the inner conical guide sleeve is closed, the thermocouple head or the sampler is left below the inner conical guide sleeve, and the temperature measuring and sampling gun returns to the upper limit;
(4) The control part sends out an automatic loading program instruction, the temperature measuring sampling gun is controlled to vertically descend along the guide pipe, the gun head automatically corrects the inner hole entering the temperature measuring couple head or the sampler 1 after passing through the lower cone opening of the inner cone guide sleeve, and the temperature measuring sampling gun is always inserted into the bottom of the temperature measuring couple head or the sampler under the action of the gravity of the counterweight;
(5) The lower guide mouth of the inner conical guide sleeve opens to give off the ascending channel of the thermocouple head or the sampler, the control part sends out an instruction of returning the lifting gun to the upper limit, after the thermocouple head or the sampler ascends in place, the control part controls the rotary stop block to collide with the fixed stop block and then stop, at the moment, the two halves of the inner conical guide sleeve are just tightly combined into a whole, the next temperature measurement or sampling waiting state is entered, and one working closed loop is completed.
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| JPH053951U (en) * | 1991-06-28 | 1993-01-22 | 川崎製鉄株式会社 | Temperature measuring device for molten steel in continuous casting for continuous casting |
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